gas-solid reaction 中文意思是什麼
gas-solid reaction
解釋
氣固反應-
Preliminary experimental study on singlet oxygen generation from gas - solid reaction system
氣固化學反應體系產生單重態氧的初步實驗研究 -
The low solid concentrarion in the circulating suspension bed ( csb ) causes the insufficient gas - solid mixing and low contact reaction intensity
摘要循環懸浮床內固相濃度很低，改善氣固混合對增強接觸反應、提高脫硫效率起著關鍵作用。 -
Based on the analysis of gas - solid multiphase catalytic reaction, the chemical reaction model is established. when the reaction is controlled by the chemical dynamic, the reaction rate is introduced by consideration of the adsorption and desorption effects. when the reaction is controlled by mass transfer, the diffusion coefficient is established which can present the flow rate increases in small reynolds domain ; for the internal diffusion, the internal diffusion coefficient is derived, and then the internal diffusion is coupled with chemical reaction to represent the phenomenon that the diffusion and the chemical reaction occur cocurrently
本文在考慮催化轉化器載體內發生的傳熱傳質現象的基礎上，建立了催化轉化器的一維單孔道和三維多孔道傳熱傳質模型;在分析載體內以氣-固多相催化反應為特點的工作機理的基礎上，建立了催化轉化器的化學反應模型:當催化轉化處于化學動力學控制區時，引入了考慮吸附、表面反應和脫附的表面化學反應速率公式，當催化轉化處于質量輸運控制區時，引入了決定外擴散能力的擴散系數公式和和決定內擴散速率的內擴散系數公式，並與化學反應速率相耦合，得出由擴散過程決定的化學反應速率公式。 -
Simulating results reveal that hydrodynamics of catalysts in riser reactor is very complex due to the effect of injection and catalysts backmix dramatically near the nozzle, reaction products unevenly distributie along the riser height, there exists apparently temperature gap between gas - phase and solid - phase near the nozzle and the temperture of two phase is nearly equal at middle - top part
模擬結果表明，由於原料油射流的影響，提升管反應器內催化劑顆粒的流動特徵非常復雜，在噴嘴附近的催化劑顆粒存在明顯的滑落返混；裂化產物濃度沿提升管存在非均勻分佈；氣粒兩相間溫差在噴嘴附近顯著，在中上部氣粒兩相溫度幾乎相等。 -
The reaction milling which is based on the principles of mechanochemistry theory takes more and more important part in developing new materials. the present researches have been foucsed on the reactions in solid - solid and solid - gas systems, but few in the solid - liquid systems. three systems were investigated by milling metal powders in distilled water
本文根據機械合金化及機械力化學等理論，在已有的研究基礎上加入適當創新，研究在水溶液中球磨mn 、 zn 、 sn等金屬粉末的固液球磨反應和球磨參數對反應產物和速度的影響。 -
Study on synthesis of superfine calcium carbonate in a gas - liquid - solid reaction - crystallizer
固反應合成超細碳酸鈣的研究
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